I created a custom launcher for my Gnome desktops (running Fedora 23/24 and Ubuntu Gnome 14.04), but I can't get it to launch in the SPLORE mode.

The .desktop file I added to ~/.local/share/applications looks like:

[Desktop Entry]
Encoding=UTF-8
Value=1.0
Type=Application
Name=PICO-8
GenericName=PICO-8
Comment=PICO-8
Icon=/home/username/Games/pico-8/lexaloffle-pico8.png
Exec="/home/username/Games/pico-8/pico8"
Categories=Game;
Path=/home/username/Games/pico-8/

If I change the Exec line to include the -splore option, like this:

Exec="/home/username/Games/pico-8/pico8 -splore"

it doesn't work at all.

Any ideas?

Mine works without the quotes around it :)

That worked! Thank you.